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Finding the Fourth Proportional to 220,112.68, 330,187.44 and 70,374.28

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Solution

The fourth proportional to 220,112.68, 330,187.44 and 70,374.28 is: 105,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,112.68 : 330,187.44 = 70,374.28 : x
  2. Step 2: Convert to fraction form
    220,112.68/330,187.44 = 70,374.28/x
  3. Step 3: Cross multiply
    220,112.68x = 330,187.44 × 70,374.28
  4. Step 4: Simplify right side
    220,112.68x = 23,236,703,355.04
  5. Step 5: Solve for x
    x = 23,236,703,355.04/220,112.68
  6. Step 6: Final answer
    x = 105,567.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.